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Regeneration Process for Bronze Filters: Pickling And Passivation Treatment Standards for B148 C95800 Nickel Aluminum Bronze

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Regeneration Process for Bronze Filters: Pickling And Passivation Treatment Standards for B148 C95800 Nickel Aluminum Bronze

I. Characteristics of B148 C95800 Nickel Aluminum Bronze

b148 c95800 nickel aluminum bronze is a high-performance copper alloy. Its chemical composition mainly includes copper (≥79.0%), aluminum (8.5% - 9.5%), manganese (0.8% - 1.5%), iron (3.5% - 4.5%), and nickel (4.0% - 5.0%). Due to the presence of nickel and iron, this alloy has higher strength and hardness while maintaining good corrosion resistance and wear resistance. It performs excellently in atmospheric, fresh water, and seawater environments and is especially suitable for high-load mechanical components and filters.


II. Importance of the Regeneration Process

The purpose of the regeneration process is to restore the surface properties of bronze filters and remove contaminants and corrosion products accumulated during long-term use. Pickling and passivation treatment is a key step in the regeneration process. It can not only remove the oxide layer and impurities on the surface but also form a dense passive film, thereby improving the corrosion resistance of the filters. Through the regeneration process, the service life of the filters can be extended, the equipment replacement cost can be reduced, and the reliability of the filters in harsh environments can be ensured.


III. Comparative Analysis of Pickling and Passivation Treatments

To better understand the impact of different pickling and passivation processes on B148 C95800 nickel aluminum bronze filters, the following table compares two common pickling and passivation treatment schemes:

Process Parameters

Scheme One

Scheme Two

Pickling Solution Composition

Nitric acid (10%) + Hydrofluoric acid (2%)

Nitric acid (8%) + Hydrofluoric acid (1%) + Corrosion inhibitor

Pickling Temperature

50 - 60 °C

40 - 50 °C

Pickling Time

15 - 20 minutes

20 - 25 minutes

Passivation Solution Composition

Chromate (5%) + Nitrate (3%)

Chromate (3%) + Nitrate (2%) + Molybdate (1%)

Passivation Temperature

30 - 40 °C

25 - 35 °C

Passivation Time

10 - 15 minutes

15 - 20 minutes

Improvement in Corrosion Resistance

Moderate

High

Surface Finish

Good

Excellent

Applicable Scenarios

General industrial environments

Harsh environments such as seawater and chemical industries

It can be seen from the above table that Scheme Two, by adding a corrosion inhibitor and molybdate, can achieve better corrosion resistance and surface finish at lower temperatures and over a longer period of time. It is especially suitable for application scenarios with high requirements for corrosion resistance.


IV. Conclusion

Pickling and passivation treatment of B148 C95800 NICKEL ALUMINUM BRONZE FILTERS is a key link in their regeneration process. By optimizing the process parameters of pickling and passivation, the corrosion resistance and surface quality of the filters can be significantly improved. The selection of an appropriate treatment scheme requires comprehensive evaluation based on specific usage environments and performance requirements. Through a reasonable regeneration process, not only can the service life of the filters be extended, but also the maintenance cost can be reduced and the operating efficiency of the equipment can be improved.

In future research, the application of new passivating agents and environmentally friendly pickling solutions can be further explored to reduce the impact on the environment and improve the treatment effect. Meanwhile, combined with advanced detection technologies, such as surface analysis and corrosion monitoring, the effect of the regeneration process can be better evaluated, providing more reliable guidance for industrial applications.



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